Management of disk drive during power loss

摘要: An embodiment of a circuit for maintaining voltage at bus after power loss in hard disk drive system. HDD systems may suddenly lose and specific tasks, such as parking the read/write head storing state data be accomplished using generated from back EMF motor that is still turning. During sequence, controller chipset to regulate so conserve much possible. In this manner, via algorithm just above threshold (typically 4.4 V) while system data, but apply other situations, head. Various algorithms tailored provide sequence regulation techniques suited applications.